单项选择题

A．Acquire information from satellites more efficiently.
B．To realize full coverage of area the satellite passes over.
C．Building more ground observation centers.
D．Compare satellites information with those from ground.
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What quality do employment interviewers look for in college seniors for executive training
单项选择题
A．The raid had been photographed by hidden cameras.B．Some watchman had seen the raid.C．The bank teller proved that Joe was the robber.D．Some monitors had been installed nearby.
A．The raid had been photographed by hidden cameras.
B．Some watchman had seen the raid.
C．The bank teller proved that Joe was the robber.
D．Some monitors had been installed nearby.
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